FITS vs APNG — Comparison & Free Converter
Fast, instant FITS to APNG conversion. No signup required. Just drop your .fits file and get .apng in seconds.
Batch Settings
About FITS to APNG Conversion
FITS or APNG — which format should you use? The answer depends on your needs. Here's a quick breakdown.
FITS is a widely used file format. It has common platform support. APNG is a widely used file format. It has common platform support.
So when should you convert FITS to APNG? This conversion is ideal when you When you need a APNG file. This conversion helps you convert between formats quickly.
Converting FITS to APNG maintains high quality with CocoConvert's optimised encoder settings.
If you've decided APNG is the right choice, CocoConvert makes the conversion effortless. Upload your .fits file, pick APNG, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert FITS to APNG
- 1
Choose your FITS file
Upload your .fits file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to APNG
Select .apng from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large image files.
- 4
Get your APNG file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert FITS to APNG
Your FITS file is decoded and re-encoded as APNG.
Your FITS file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in APNG format
The converted file is ready for download
Format Comparison
FITS
.fits file
| Extension | .fits |
| MIME Type | image/fits |
| Category | Image |
APNG
.apng file
| Extension | .apng |
| MIME Type | image/apng |
| Category | Image |
Should You Convert FITS to APNG?
When to Convert
- ✓When you need a APNG file
Frequently Asked Questions
Should I use FITS or APNG?
It depends on your goal. FITS preserves full quality. APNG preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is APNG higher quality than FITS?
Not necessarily. Converting FITS to APNG maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert FITS to APNG on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for FITS to APNG?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for FITS to APNG?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.